Question

我有一个JavaFx项目，其中包含FXML文件及其控制器和主类

该程序在IDE＆＃34; IntelliJ＆＃34; 但是当我尝试制作一个工件并构建它时，jar文件就不会运行＆＃34;当然安装了JRE＆＃34;

我尝试了很多方法来构建工件，那么是否有一种特定的方法来构建包含FXML文件的jar文件？

StackTrace异常

 Exception in Application start method
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
        at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException: Location is required.
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3207)
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
        at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
        at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
        at sample.Main.start(Main.java:20)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
        at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
        at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
        ... 1 more
Exception running application sample.Main

主类包含此＆＃34; FXML Loader＆＃34;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) {

        Parent root = null;
        try {
            root = FXMLLoader.load(getClass().getResource("/Sample/MainLayout.fxml"));

            primaryStage.setTitle("Estimated Download Time");
            primaryStage.setScene(new Scene(root, 764, 600));
            primaryStage.getIcons().add(new Image(getClass().getResourceAsStream("Logo.png")));
            primaryStage.resizableProperty().setValue(Boolean.FALSE);
            primaryStage.show();

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {launch(args);}
}

Answer 1

我通过从FXML加载器中删除包名称来解决问题

而不是

root = FXMLLoader.load(getClass().getResource("/Sample/MainLayout.fxml"));

我删除了包名“Sample”，因此它变成了这个

 root = FXMLLoader.load(getClass().getResource("MainLayout.fxml"));

Jar文件在Build artifact - JavaFX之后不会运行

1 个答案: